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Local ancestry inference provides insight into Tilapia breeding programmes

ABSTRACT: Local ancestry inference provides insight into Tilapia breeding programmes

PROVIDER: PRJEB38387 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	ERR4170942_1.fastq.gz	Fastqsanger.gz
	ERR4170942_2.fastq.gz	Fastqsanger.gz
	ERR4171069_1.fastq.gz	Fastqsanger.gz
	ERR4171069_2.fastq.gz	Fastqsanger.gz

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Local ancestry inference provides insight into Tilapia breeding programmes.

Project description:Tilapia is one of the most commercially valuable species in aquaculture with over 5 million tonnes of Nile tilapia, Oreochromis niloticus, produced worldwide every year. It has become increasingly important to keep track of the inheritance of the selected traits under continuous improvement (e.g. growth rate, size at maturity or genetic gender), as selective breeding has also resulted in genes that can hitchhike as part of the process. The goal of this study was to generate a Local Ancestry Interence workflow that harnessed existing tilapia genotyping-by-sequencing studies, such as Double Digest RAD-seq derived Single-Nucleotide Polymorphism markers. We developed a workflow and implemented a suite of tools to resolve the local ancestry of each chromosomal locus based on reference panels of tilapia species of known origin. We used tilapia species, wild populations and breeding programmes to validate our methods. The precision of the pipeline was evaluated on the basis of its ability to identify the genetic makeup of samples of known ancestry. The easy and inexpensive application of local ancestry inference in breeding programmes will facilitate the monitoring of the genetic profile of individuals of interest, the tracking of the movement of genes from parents to offspring and the detection of hybrids and their origin.

| S-EPMC7596482 | biostudies-literature

Peptide Ancestry Informative Markers in Uterine Neoplasms from Women of European, African and Asian Ancestry

Project description:Characterization of ancestry-linked peptide variants in disease-relevant patient tissues represents a foundational step to connect patient ancestry with molecular disease pathogenesis. Nonsynonymous single nucleotide polymorphisms (SNPs) encoding missense substitutions within tryptic peptides exhibiting high allele frequencies in European, African, and East Asian populations, termed peptide ancestry informative markers (pAIMs), were prioritized from 1000 genomes. In silico analysis shows that as few as 20 pAIMs can determine ancestry proportions similarly to >260K SNPs (R2=0.9905). Multiplexed proteomic analysis of >100 human endometrial cancer cell lines and uterine leiomyoma (ULM) tissues combined resulted in the quantitation of 62 pAIMs that correlate with self-described race and genotype-confirmed patient ancestry. Candidates include a D451E substitution in GC vitamin D-binding protein previously associated with altered vitamin D levels in African and European populations. These efforts describe a generalized set of markers for proteoancestry assessment that will further support studies investigating the impact of ancestry on the human proteome and how this relates to the pathogenesis of uterine neoplasms.

2022-02-16 | PXD029323 | Pride

Tilapia cultivar:Nile tilapia

Project description:Tilapia cultivar:Nile tilapia Raw sequence reads

| PRJNA821269 | ENA

Tilapia cultivar:Nile tilapia

Project description:Tilapia cultivar:Nile tilapia Raw sequence reads

| PRJNA821018 | ENA

Tilapia

Project description:Tilapia Transcriptome or Gene expression

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Leptin stimulates cellular glycolysis through a STAT3 dependent mechanism in tilapia

Project description:Purpose: The goal of this study was to assess the differential gene expression between control and leptin treated pituitary rostral pars distalis' of the tilapia (Oreochromis mossambicus). Methods: Pituitary mRNA profiles from control (PBS) and leptin (100nM) treated tilapia (Oreochromis mossambicus) pituitary rostral pars disatalis were generated by deep sequencing using Illumina MiSeq. The sequence reads that passed quality filters were analyzed at the transcript abundance level using ANOVA (ANOVA) and BowTie2 followed by Cufflinks. Results: Differential gene expression identified 1995 genes that were differentially expressed in the pituitary rostral pars distalis treated with leptin compared to PBS treated controls. These genes were indicated to be functionally involved in numerous biological processes including glycolyiss. Conclusions: Our study represents the first detailed pituitary rostral pars distalis transcriptomes in the tilapia and identifies leptin as a major stimulator of glycolysis at the cellular level in teleost fishes.

2018-07-27 | GSE117682 | GEO

Exploring the mechanism of Streptococcus agalactiae infecting tilapia intestinal tissue based on transcriptomics

Project description:The aim of this study is to investigate the mechanism of Streptococcus agalactis invading the intestine of tilapia

2024-11-15 | GSE247668 | GEO

Protein expression profiles of cold stress in red tilapia

Project description:The cold stress is considered the bottleneck problem limiting the development of red tilapia industry. Fish (initial weight: 72.71±1.32 g) was divided into the cold stressed group (C) and the control normal water temperature group (N). The water temperature was reduced by 2℃ per day from 20℃ to 8℃ in cold group, and the control group kept the water temperature at 20℃ during the experiment. At the end of the experiment, the gill(G)、liver(L) and skin(S) tissues from the fish of cold(C) group and control normal water temperature (N) group were taken. The DIA proteome analysis of 18 samples was completed, and 6341 trusted proteins containing quantitative information were obtained. Our aim is to understand the protein expression profiles of cold stress in red tilapia.

2024-08-15 | PXD052625 | Pride

Global DNA methylation changes in Nile tilapia gonad during high-temperature induced masculinization

Project description:In fish, the sex determining mechanisms can broadly be classified as genotypic (GSD), temperature-dependent (TSD), or genotypic plus temperature effects (GSD+TE). For the fish species with TSD or GSD+TE, extremely high or low temperature can affect its sex determination and differentiation. For long time, the underlying changes in DNA methylation that occur during high or low temperature induced sex reversal have not been fully clarified. In this study, we used Nile tilapia as a model to perform a genome-wide survey of differences in DNA methylation in female and male gonads between control and high temperature induced groups using methylated DNA immunoprecipitation (MeDIP). We identified the high temperature induction-related differentially methylated regions (DMRs), and performed functional enrichment analysis for genes exhibiting DMR. These identified differentially methylated genes were potentially involved in the connection between environmental temperature and sex reversal in Nile tilapia. In this study, four samples (control females, CF; control males, CM; induced females, IF; induced males, IM) were analyzed.

2015-08-27 | E-GEOD-72386 | biostudies-arrayexpress

Tilapia microbiome

Project description:Tilapia microbiome Raw sequence reads

| PRJNA1036009 | ENA